libguile/variable.h

   1 /* classes: h_files */
   2
   3 #ifndef SCM_VARIABLE_H
   4 #define SCM_VARIABLE_H
   5
   6 /* Copyright (C) 1995,1996,2000,2001, 2006, 2008, 2011 Free Software Foundation, Inc.
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public License
  10  * as published by the Free Software Foundation; either version 3 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  21  * 02110-1301 USA
  22  */
  23
  24 \f
  25
  26 #include "libguile/__scm.h"
  27 #include "libguile/smob.h"
  28
  29 \f
  30
  31 /* Variables
  32  */
  33 #define SCM_VARIABLEP(X)      (SCM_HAS_TYP7 (X, scm_tc7_variable))
  34 #define SCM_VARIABLE_REF(V)   SCM_CELL_OBJECT_1 (V)
  35 #define SCM_VARIABLE_SET(V, X) SCM_SET_CELL_OBJECT_1 (V, X)
  36 #define SCM_VARIABLE_LOC(V)   (SCM_CELL_OBJECT_LOC ((V), 1))
  37
  38 \f
  39
  40 SCM_API SCM scm_make_variable (SCM init);
  41 SCM_API SCM scm_make_undefined_variable (void);
  42 SCM_API SCM scm_variable_p (SCM obj);
  43 SCM_API SCM scm_variable_ref (SCM var);
  44 SCM_API SCM scm_variable_set_x (SCM var, SCM val);
  45 SCM_API SCM scm_variable_unset_x (SCM var);
  46 SCM_API SCM scm_variable_bound_p (SCM var);
  47
  48 SCM_INTERNAL void scm_i_variable_print (SCM var, SCM port, scm_print_state *pstate);
  49
  50 SCM_INTERNAL void scm_init_variable (void);
  51
  52 #endif  /* SCM_VARIABLE_H */
  53
  54 /*
  55   Local Variables:
  56   c-file-style: "gnu"
  57   End:
  58 */